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Quiz 12
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Q.1
Which one is absent in erythrocytes? [ CBSE 1997]
0%
a) Krebs cycle
0%
b) Enzymes
0%
c) Biomembrane
0%
d) Hyaloplasm
Explanation
Answer : (a)
Q.2
.Q. is maximum when respiratory substrate is … .. [ AIIMS 1992]
0%
a) Glucose
0%
b) Fat
0%
c) Protein
0%
d) Malic acid
Explanation
Answer : (d)
Q.3
R.Q. is more than one when the substrate is … .. [ MPPMT 2000]
0%
a) Fat
0%
b) Glucose
0%
c) Organic acid
0%
d) Protein
Explanation
Answer : (c)
Q.4
During glycolysis the number of ATP molecules utilized to change glucose into fructose 1,6 diphosphate are … ..[ HPPMT 2005]
0%
a) 4
0%
b) 3
0%
c) 2
0%
d) 1
Explanation
Answer : (c)
Q.5
Which is end-product of oxidative phosphorylation? … ..[ CBSE 1996]
0%
a) ATP
0%
b) ATP + H2O
0%
c) NADH
0%
d) Oxygen
Explanation
Answer : (b)
Q.6
Oxidative phosphorylation is found in … .. [ MPPMT 2002]
0%
a) Chloroplasts
0%
b) Leucoplasts
0%
c) Peroxisomes
0%
d) Mitochondria
Explanation
Answer : (d)
Q.7
Mitochondrial marker enzyme is … .. [ JIPMER 2000]
0%
a) Pyruvate dehydrogenase
0%
b) Aldolase
0%
c) Amylase
0%
d) Succinic dehydrogenase
Explanation
Answer : (d)
Q.8
Which is correct for ADP .. ..[ BHU 2007]
0%
a) Two high energy bonds
0%
b) One high energy bond
0%
c) Three high energy bonds
0%
d) None of the above
Explanation
Answer : (b)
Q.9
Minerals that activate respiratory enzymes are … .. [ kerala 2011]
0%
a) N and P
0%
b) Mg and Mn
0%
c) K and Ca
0%
d) S and Fe
Explanation
Answer : (b)
Q.10
Pyruvic acid is a product of … .. [ CPMT 1995]
0%
a) Acetic acid
0%
b) Acetyl CoA
0%
c) Starch
0%
d) Glucose
Explanation
Answer : (d)
Q.11
Number of oxygen molecules required during glycolysis of one glucose molecule is … .. [ Odisha 2003]
0%
a) 38
0%
b) 36
0%
c) 2
0%
d) zero
Explanation
Answer : (d)
Q.12
Glycolysis is conversion of … ..[ MPPMT 2002]
0%
a) Glucose to glycogen
0%
b) Glycogen to glucose
0%
c) Glucose to pyruvic acid
0%
d) Glucose to citric acid
Explanation
Answer : (c)
Q.13
Succinate + FAD forms … ..
0%
a) Fumarate + FADH2
0%
b) Malate + NADH2
0%
c) Isocitrate + NADH2
0%
d) Citrate + Water
Explanation
Answer : (a)
Q.14
Fumarase changes fumaric acid into … ..[ CPMT 1992]
0%
a) Malic acid
0%
b) Maleic acid
0%
c) Citric acid
0%
d) Succinic acid
Explanation
Answer : (a)
Q.15
R.Q. would depend upon … ..[ KCET 2009]
0%
a) Nature of enzyme
0%
b) Nature of substrate
0%
c) Amount of CO2 released
0%
d) Amount of O2 utilised
Explanation
The respiratory quotient (RQ) is the ratio: RQ = CO2 eliminated / O2 consumed The respiratory quotient depends upon the type of respiratory substrate used during respiration. When carbohydrates are used as substrate and are completely oxidised, the RQ will be 1, because equal amounts of CO2 and O2 are evolved and consumed, respectively. Answer : (b)
Q.16
In mitochondria, enzyme cytochrome oxidase is present in .. .. [ MPPMT 2009]
0%
a) Perimitochondrial space
0%
b) Outer membrane
0%
c) Inner membrane
0%
d) Matrix
Explanation
Answer : (c)
Q.17
Match column .. ..[ KCET 2002]
a) Krebs cycle
p) Stroma
b) Glycolysis
q) Grana
c) Calvin cycle
r) mitochondrial matrix
- - - -
s) Cytoplasm
0%
a) a – s, b – r, c – q
0%
b) a- r, b – s, c – p
0%
c) a – s, b – r, c – p
0%
d) a – r, b-s, c- q
Explanation
Answer : (b)
Q.18
Choose the correct labeling
0%
a) a – ethanol, b – CO2, c – acetaldehyde
0%
b) a – CO2, b – acetaldehyde, c – ethanol
0%
c) a – CO2, b - -ethanol, c – acetaldehyde
0%
d) a – ethanol, b – acetaldehyde, c – CO2
Explanation
Answer : (d)
Q.19
For two molecules of glucose, glycolysis uses and produces ATP molecules … [ W.B 2009]
0%
a) 4 and 8
0%
b) 2 and 4
0%
c) 2 and 8
0%
d) 2 and 2
Explanation
Answer : (a)
Q.20
What is true of Krebs cycle … ..[ Manipal 2002]
0%
a) ATP/GTP is formed
0%
b) Two decarboxylation
0%
c) Acetyl CoA combines with OAA
0%
d) All the above
Explanation
Answer : (d)
Q.21
Apparatus to measure rate of respiration and R.Q. is … …. [ CBSE 1992]
0%
a) Auxanometer
0%
b) Potometer
0%
c) Respirometer
0%
d) Manometer
Explanation
Answer : (c)
Q.22
Krebs cycle is … … [ AMU 1993]
0%
a) Oxidation of glucose to alcohol and water
0%
b) Oxidation of acetyl CoA to carbon dioxide and water involving electron transport
0%
c) Complete oxidation of acetyl CoA without electron transport
0%
d) Complete reduction of acetyl CoA to carbon dioxide and water
Explanation
Answer : (c)
Q.23
Anaerobic respiration takes place in … ..[ MPPMT 2002]
0%
a) Ribosome
0%
b) Nucleus
0%
c) Vacuole
0%
d) Cytoplasm
Explanation
Answer : (d)
Q.24
Number of carbon atoms available in acetyl CoA is … ..[ KCET 1999]
0%
a) 6
0%
b) 4
0%
c) 3
0%
d) 2
Explanation
Answer : (d)
Q.25
In glycolysis, enzyme enlaced produces .. ..[ AMU 1999]
0%
a) Phosphoglyceric acid
0%
b) Phosphoenol pyruvate
0%
c) Phosphoglyceraldehyde
0%
d) Pyruvate
Explanation
Answer : (b)
Q.26
Turn of Krebs cycle required for completes oxidation of one molecules of glucose are … .. [ MHTCET 2011]
0%
a) 2
0%
b) 3
0%
c) 4
0%
d) 6
Explanation
Answer : (a)
Q.27
R.Q. of 4 is obtained when respiratory substrate is … .. [ JIPMER 1996]
0%
a) Oxalic acid
0%
b) Malic acid
0%
c) Tartaric acid
0%
d) Glucose
Explanation
Answer : (a)
Q.28
R.Q. of anaerobic respiration is … .[ Wardha ..2005]
0%
a) Zero
0%
b) ∞
0%
c) 1
0%
d) > 1
Explanation
Answer : (b)
Q.29
Two pairs of electrons passing from NADH molecules to oxygen generate … ..[ AMU 2011]
0%
a) 2 ATP
0%
b) 3 ATP
0%
c) 4 ATP
0%
d) 6 ATP
Explanation
Answer : (d)
Q.30
Select suitable name for the process C6H12O6 + 2ADP + Pi → 2C2H5OH + CO2 + 2ATP [ KCET 2012]
0%
a) Photorespiration
0%
b) Lactate fermentation
0%
c) Aerobic respiration
0%
d) Alcoholic fermentation
Explanation
Answer : (d)
0 h : 0 m : 1 s
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